BIOLOGY HIGH SCHOOL

Which statement describes a function of thehormone estrogen?
(1) It regulates the secretion of digestive
enzymes.
(2) It promotes sperm production in males.
(3) It influences the development of adult sex
characteristics.
(4) It maintains blood sugar levels.

Answers

Answer 1
Answer: (3) It influences the development of adult sex

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A scientist carries out an experiment on a hamster. He exposes the hamster to x-rays at regular intervals. This results in a germ line mutation in the hamster. What is the possible outcome on the progeny of the hamster?
In recent history, humans have influenced which parts of life on Earth? A. Almost none of it. B. Life on land only. C. Virtually all life on Earth. D. Life in cities only.
Which form of natural selection on polygenic traits results in the creation of two distinct phenotypes? A. Directional selection B. Disruptive selection C. Stabilizing selection D. Artificial selection
Why is preventing pollution at its source the first strategy in minimizing environmental risk?a. It is easier and more effective to prevent pollution than to clean up and dispose of waste. b. Remediation of contamination is easier than pollution prevention. c. Habitat restoration cannot be undertaken with modern technologies. d. Safe waste disposal is the easiest was to minimize environmental risk.
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What is the energy of activation

Answers

It is called activation energy! Usually fire, or a match.

Members of which two domains of life are composed of one or more prokaryotic cells?

Answers

Domain Archea and domain Bacteria

Which data would be best analyzed and communicated using a histogram

Answers

The data with one same characteristic, different number and comparable would be best analyzed and communicated using a histogram. For example, one gene expression in different tissues or different samples.

Receptors that provide animals with information from the external environment are located in the _____.ears
skin
blood vessels
joints
tongue
eyes
muscles
nose

Answers

Receptors which provide animals with information from the external environment are located in ears, tongue, eyes, and the nose. These are all receptors that can be found in our sensory organs and provide us with feedback from our nearby environment and the stimuli on which we should be alerted towards. 
Receptors that provide animals with information from the external environment are located in the
ears
tounge
eyes
nose

In which organ does the majority of photosynthesis take place?a. Roots
b. Vascular tissue
c. Leaves
d. Stems

Answers

c.leaves :))) because chloroplast  is in the leaves 

it is the leaves that fall of the tree's, bushes, and anything that has a leaf on it

The primary location of digestion and absorption of nutrients is the:esophagus
large intestine
stomach
small intestine
I clicked stomach...Is it right?

Answers

small intestine, That's because they're long which enables a wider work for enzymes and digestive juice.
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A long-haul commercial jet covers the 12,450 km from Beijing to Mexico City in 13.5 hours. What is its average speed?
Unlike exocrine glands, endocrine glands _______.A.) release secretions outside the body.B.) release digestive enzymes.C.) release secretions directly into the blood.D.) usually have ducts.
Which level does macroeconomics focus on? A. personal B. business C. government
Where is the spinal cord found? below the frontal lobe in the occipital lobe in the backbone below the thalamus?