BIOLOGY HIGH SCHOOL

Which structure secretes hormones directly into the bloodstream without using a duct?lacrimal gland
adrenal gland
oil gland
salivary gland

Answers

Answer 1
Answer: The answer is adrenal gland.

Hormones are chemical signaling molecules secreted by glands, either endocrine or exocrine. Endocrine glands secrete hormones directly into the bloodstream without using a duct, unlike the exocrine glands. Endocrine glands include pancreas, hypothalamus, pineal gland, pituitary gland, thyroid gland, parathyroid gland, adrenal gland, ovaries, testes
Answer 2
Answer:

Adrenal gland, just took the quiz

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Which letter in the graph represents the zone of physiological stress?

Answers

The letter C in the graph represents the zone of physiological stress.

The zone of physiological stress is the range of environmental conditions in which an organism can survive, but at a reduced level of function. In the graph, this range is represented by the area between the optimal range (zone of optimal performance) and the zone of intolerance.

In the zone of physiological stress, organisms may experience a variety of negative effects, such as reduced growth, reproduction, and immunity. They may also be more susceptible to diseases and other environmental stressors.

The zone of physiological stress varies depending on the species and the environmental factor in question. For example, some species are more tolerant of heat stress than others. Similarly, some environmental factors, such as temperature, have a greater impact on physiological stress than others.

For such more question on physiological

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Answer:

c

Explanation:

The tissue which lines moveable joints is ____A : tendons

B : cartilage

C : ligament

Answers

B) Cartilage is the tissue which lines movable joints.

The first step that occured in the speciation of the Galapagos finches.A) establishing genetic equilibrium
B) behavioral isolation
C) ecological competition
D) founders arrived

Answers

The first step that occured in the speciation of the Galapagos finches is behavioral isolation. The answer to your question is B. I hope this is the answer that you are looking for and it comes to your help.

Birds have ________ and not teeth.
a. jaws
b. molars
c. beaks

Answers

Birds have beaks and not teeth.

All birds have some sort of bill or beak. Birds use their beaks to preen their feathers, build nests, and feed their young.
birds have beaks and not teeth 

All life on earth depends on _____ through the ecosystem​

Answers

Answer:

Energy

Explanation:
All life on earth depends on energy through the ecosystem

Is the deer digestive system different from the human digestive system

Answers

Yes, absolutely! Unlike humans, deer can digest the molecule cellulose. Cellulose is present in plants such as grass and leaves. Deer have four stomach chambers: the rumen, the reticulum, omasum, and abomasum. If the deer's intestines would be stretched out, it would measure 28 feet long. Hope this helps!
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