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never [62]
1 year ago
15

The body's ability to maintain a relatively constant internal environment is called homeostasis. This stability can be challenge

d by:
(Select all that apply)
A. reduced water or food intake
B. infectious organisms
C. elevated or depressed blood pH
D. extreme temperatures.
Biology
2 answers:
Marina CMI [18]1 year ago
5 0
Homeostasis is the body's ability to maintain a constant internal environment. This stability can be challenged by reduced water and food intake and an elevated or depressed blood pH.
Rudiy271 year ago
5 0

Answer:

All of the answers are correct. Select all of them.

Explanation:

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A personal trainer thinks her clients get better workouts and are stronger if they listen to music while working out. Over the n
katrin [286]

Answer:

The correct answer is: the group of 10 people that lifted the barbell with music is the control group.

Explanation:

The personal trainer made an experiment to test her hypothesis. When experiments are being made, is common to have a control group and an experimental group.

The control group is the one that is subjected to the usual conditions, the group that shows what normally happens. The experimental group is the opposite, this group is observed while it goes through an unusual condition that may impact how they perform in the task observed.

<u>The personal trainer thinks that playing music for her clients is of benefit to them, so we can assume that she always plays music during the workouts, which means that the control group is the one that is listening to music while lifting a barbell</u>. The group that worked out without music is the experimental group because they were the ones that performed that activity with a change in their normal environment.

7 0
1 year ago
Basophils of the blood help to get defensive leukocytes to the site quickly by releasing an anticoagulant called __________ and
Alex

Answer:

Basophils of the blood help to get defensive leukocytes to the site quickly by releasing an anticoagulant called ___heparin_______ and a vasodilator called _____histamine_____

Explanation:

Basophils are a type of white blood cell containing specific granules that release histamine (vasodilator) and heparin (a substance with anticoagulant action) and azurophilic granules that contain lysosomes. They are important in allergic and anaphylactic processes.

4 0
2 years ago
A line graph has a vertical axis labeled "Average plant mass (g)^ * and a horizontal axis labeled "Herbicide (g/plant)." What in
SSSSS [86.1K]

Answer:

The correct option is D. The average mass of plants exposed to 3 g of herbicide was 10g.

Explanation:

As the vertical axis is labelled as average plant mass, it will make the y- coordinate.

As the horizontal axis is labelled as Herbicide (g/plant), it will make the x-axis.

The coordinates for the given value are (3,10). 3 will be the value of the x- coordinate. Hence, it will show the average mass of the plant at the plotted point which will be 3 g.

10 will show the value of the y- coordinate which will be the amount of herbicide given to the plant.

Hence, Dis the correct option.

7 0
2 years ago
In cartilage, proteoglycans form large complexes by attaching to:_____ a. laminin. b. hyaluronate. c. elastin. d. collagen. e. g
andre [41]

Answer: Option E.

glycosaminoglycans

Explanation:

Proteoglycans are core proteins that are attached to glycosaminoglycans chains via covalent bond because

glycosaminoglycans consist of repeating disaccharide units composed of an N-acetylated or N-sulfated hexosamine and either a uronic acid or galactose . They are found in connective tissues and cell matrix of animal cells.

8 0
1 year ago
Paper chromatography is a technique used to separate molecules based upon their size and solubility in a particular solvent. If
Tanya [424]

Answer:

a. Paper chromatography would separate the pigments into several bands that appear green or yellow/orange.

Explanation:

The primary or main pigment in plants is the chlorophyll. The chlorophyll gives plants their characteristics green colour and helps in the absorption of light during photosynthesis.

Other pigments in plants include carotenoid with its characteristic yellow, red or orange colour; anthocyanin with its re/blue colour and betalains with its red/yellow colour.

<em>Hence, if pigments from a particular species of plant are extracted and subjected to paper chromatography, one would expect the pigments to be separated into several colour bands ranging from green to yellow/orange.</em>

The correct option is a.

4 0
1 year ago
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