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2 years ago

Which organisms undergo Carnegie stages? A lizard B sheep C snail D worm YOU CAN CHOOSE MORE THAN ONE ANSWER!

Biology

2 answers:

NeX [460]2 years ago

7 0

Usually, only mammals undergo Carnegie stages.

Therefore, 'B. Sheep' would be the correct answer.

VashaNatasha [74]2 years ago

5 0

Answer: The correct answer is- B sheep.

Carnegie stages can be described as the standardized system of 23 stages corresponding to the chronological events that occur during the development of vertebrate embryo.

For instance, stage one relates to unicellular embryo that is formed by fertilization ( fusion of male and female gamete).

Thus, out of the given options, sheep ( which is a vertebrate) undergo Carnegie stages.

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The biology students in Seattle bought a second fish sample at the fish market. Which tree shows what the data would look like i

kow [346]

Answer:

Receipts in the salt-water section of the Fulton Fish Market by species and by states and ... U.S. Fish & Wildlife Service, 421 BellSt. Terminal. Seattle l.Wash.). Includes landings ... Biology of the Sea Lamprey in ltd Parasitic Phase, by Phillip S. Parker and ... The second portion deals with the chemical analysis of the samples.

Explanation:

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2 years ago

The process of protein denaturation Multiple Choice: a) is only possible in proteins with quaternary structure. b) is permanent

pav-90 [236]

Answer:

The correct option is D.

Explanation:

Protein generally are very sensitive macro molecules; they have specific temperatures and pH that are ideal for their operations, this is especially true for proteins that act as enzymes in biochemical reactions.

There are four different types of structures that a protein can assume, these are primary, secondary, tertiary and Quaternary structure. The structure of a protein determines the kind of function it can perform.

There are some factors that can destroy the structure and functions of proteins, these include excessive heat and pH. A protein is said to be denatured when its secondary and tertiary structure have been disrupted or destroyed. Denaturation does not affect the primary structure of the protein, thus, the peptide bond remains intact.

Denaturation is usually temporary and can be reversed if the factors that cause denaturation is removed, this process is called RENATURATION. Renaturation process allow the protein to refold and resume its functions. But sometimes, denaturation can be permanent and irreversible leading to permanent loss of protein functions.

7 0

2 years ago

Explain wether a mutation in any cell of an organisms can be passed on to offspring of the organism.under what conditions is a m

astraxan [27]

Mutations can not be passed down to offspring unless the mutation occurs in the sex cells.

3 0

2 years ago

An organism has three different versions of Gene Tyx – version a, b and c. Determine the inheritance pattern of this trait. Then

Rina8888 [55]

Explanation:

As we know that different versions of the gene are called as the alleles. Allele is the various sequence of DNA (deoxyribonucleic acid) or alleles are known to be different forms of the genes, which can be seen at the same locus on the homologous chromosomes. Let us know assume that gene Tyx has two alleles in it, which represents the two forms of expression having same character. i.e. Tallness and Dwarfness TT(tall), Tt(tall), tt(dwarf). In the given question, the version

(a) TT, where alleles exist in the homozygous dominant conditions,

(b) Tt, where alleles exist in the heterozygous dominant condition

(c) tt, where alleles exist in homozygous recessive condition. Therefore, it might follow autosomal dominant inheritance, or autosomal recessive inheritance or incomplete dominance etc.

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2 years ago

A population of 400 Mexican free tailed bat roostInside a cave and forage for food at night they primarily pray on insects like

max2010maxim [7]

Answer:

Populations of insects in the area decrease - Decrease

Populations of owls in the area increase - Decrease

Some bats are infected with a fatal fungal disease - Decrease

Bats from a nearby colony immigrate into the population - Increase

Improved food quality allows female bats to have two breeding cycles per year - Increase

Explanation:

A population of bats can be affected by numerous factors as to will its population increase or decrease, just as at any other organism. If the populations of their food source decrease, the bats will have less food, thus their numbers will decrease. The same goes is a deadly diseases spreads among them, as many will be infected and will die out. They also have predators, so if some of their predators has increase in its population, the population of bats will go down. On the other hand, if the amount and quality of food is better, and the females are able to breed twice a year instead of once, than the population will grow. If bats from the same species but from another colony move in and join the population, than the population will have rapid increase.

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2 years ago