answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Vlad1618 [11]
2 years ago
9

Why humans need organs, like the liver and pancreas, but amoebas do not.

Biology
1 answer:
frez [133]2 years ago
6 0

Answer:

They have no use for it, just like they dont have any type of respiratory organs like lungs.

Explanation:

In the case of nutrition and digestion they obtain food by capturing their prey with their pseudopodia. The food is internalized through a type of endocytosis known as phagocytosis. Nutrients are obtained as the enzymes digest the food inside the vacuole and when they are finished the food vacuole dissolves.

You might be interested in
A biologist at World University used Procedure IV to conduct an additional study and found the sequence following below. Using y
Nady [450]

Answer:

Valine-Leucine-Proline-Lysine-Histidine

Explanation:

The central dogma of biology is the process by which DNA is used to synthesize RNA and subsequently amino acid sequence (PROTEIN). The processes of transcription and translation is used in gene expression. Transcription is the process whereby the information encoded in a DNA molecule is used to synthesize a mRNA molecule. Transcription is catalyzed by RNA polymerase enzyme, which uses complementary base pairing rule i.e Adenine(A)-Thymine(T), Guanine(G)-Cytosine(C) pairing.

N.B: Thymine is replaced by Uracil in the mRNA

For the above DNA sequence: CAC GAC GGA TTC GTA, the mRNA sequence will be: GUG CUG CCU AAG CAU

Translation is the second process of gene expression which involves the synthesis of an amino acid sequence from an mRNA molecule. The mRNA is read in a group of three nucleotides called CODON. Each codon specifies an amino acid (see attached image for genetic code)

Based on the attached genetic code, an mRNA sequence: GUG CUG CCU AAG CAU will encode an amino acid sequence: Valine(Val) - Leucine (Leu) -Proline (Pro) -Lysine (Lys) - Histidine (His).

GUG specifies Valine amino acid

CUG specifies Leucine amino acid

CCU specifies Proline amino acid

AAG specifies Lysine amino acid

CAU specifies Histidine amino acid

5 0
2 years ago
en muchas flores los estambres y pistilos alcanzan la madurez en momentos diferentes. esto podria ser una ventaja?
Doss [256]
No solo seria natural porque son differentes y asy creses pero solo si isiste todo igual
7 0
2 years ago
Masses of gray matter within the central nervous system are
Ludmilka [50]

Answer:

The correct answer is: neuronal cell bodies, neuropil, and glial cells.

Explanation:

Nervous tissue can easily be classified in grey and white matter. Both of these matters are located in the Central Nervous System.

These specific names are given by the color these structures have. White matter consists mostly of axons, and is white because the axons are surrounded by myelin, which is a structure made of fat.

<u>Grey matter </u><u>is composed of the bodies of neuronal cells, neuropil and glial cells. The glial cells found in the grey matter are astrocytes and oligodendrocytes.</u>

3 0
2 years ago
Read 2 more answers
The muscles that surround external body openings typically have a ________ fascicle arrangement. parallel convergent pennate cir
HACTEHA [7]
Parallel

In a parallel arrangement, the length of the fascicles runs parallel to the long axis of the muscle. Such muscles are either straplike like the sartorius muscle of the thigh, or spindle shaped with an extended belly, like the biceps brachii muscle of the arm. However, some scientists classify spindle-shaped muscles into a separate class asfusiform muscles.

Pennate

in a pennate pattern, the fascicles are short and they attach obliquely to a central tendon that runs the length of the muscle. Pennate muscles come in three forms:

<span><span>Unipennate, in which the fascicles insert into only one side of the tendon, as in the extensor digitorum longus muscle of the leg. </span><span>Bipennate, in which the fascicles insert into the tendon from opposite sides so the muscle “grain” resembles a feather.
The rectus femoris of the thigh is bipennate. </span><span>Multipennate, which looks like many feathers side by side, with all their quills inserted into one large tendon. The deltoid muscle, which forms the roundness of the shoulder is multipennate.</span></span>

8 0
2 years ago
The diagram shows a pedigree for a certain trait in three generations. The grandparents are represented at the top and the grand
alexgriva [62]
Can’t answer there’s so diagram shown
8 0
2 years ago
Read 2 more answers
Other questions:
  • The human body consists of two types of fat components: essential body fat and storage body fat. TRUE OR FALSE PLEASE HELP
    14·2 answers
  • The organelle responsible for the synthesis of fatty acids and steroid hormones is called:
    11·1 answer
  • Why did dna technology lead to more use of cladistics?a. it showed that the linnaean system was the most accurate.b. it changed
    12·2 answers
  • Aidan has had non stop diarrhea all day and is severely weakened. why is his nurse concerned?
    12·1 answer
  • Taphonomists would probably conclude that hominins had scavenged meat from an animal carcass they did not kill if fossil animal
    10·1 answer
  • What is an advantage of using fossil fuels to generate electricity? Using wind power is less expensive than burning coal. Fossil
    14·2 answers
  • What is the primary function of carbohydrates attached to the exterior of cell membranes?
    15·1 answer
  • An ameba is a single-celled organism. It uses its cell membrane to obtain food from its environment, digests the food with the h
    6·1 answer
  • The drug cytochalasin targets actin filaments in the cytoskeleton, preventing them from forming. Treatment of a cell with cytoch
    10·1 answer
  • Which one of the following processes does not occur to excess neurotransmitters in the synapse
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!