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andrey2020 [161]
2 years ago
12

HELP!!! I NEED THIS RN!!

Biology
1 answer:
marysya [2.9K]2 years ago
5 0
ITS simple bro :) lol
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Which molecule is a first messenger but not a second messenger
k0ka [10]

Answer:

Hormones act as first messenger but not as second messengers.

Explanation:

Second messenger act as signaling molecule which are secreted in response to various biological signals generated by first messenger such as hormones,neurotransmitters etc.Second messengers include various bioactive molecules such as cyclic AMP(cAMP),cyclic GMP(cGMP),inositol triphosphate(IP3),diacylglycerol(DAG),calcium ions(Ca2+) etc.

         Hormones are extracellular signaling molecules whereas second messengers are intracellular signaling molecules.

5 0
3 years ago
Identify early ideas about evolution?
Setler79 [48]

Explanation:

Naturalists began to focus on the variability of species; the emergence of paleontology with the concept of extinction further undermined static views of nature. In the early 19th century Jean-Baptiste Lamarck (1744–1829) proposed his theory of the transmutation of species, the first fully formed theory of evolution.

In classical Latin, though, evolution had first denoted the unrolling of a scroll, and by the early 17th century, the English word evolution was often applied to 'the process of unrolling, opening out, or revealing'. It is this aspect of its application which may have been behind Darwin's reluctance to use the term.

hope it helps you

6 0
3 years ago
Read 2 more answers
How can recycling impact the environment? A) It uses less energy to make something from recycled materials than from new materia
o-na [289]

Answer:

A) It uses less energy to make something from recycled materials than from new materials.

Explanation:

When a recycled material is used to make a new product, it conserves energy because the recycled materials have already been processed once; so making something from it for the second time uses less energy-intensive than the first. For example: Making new aluminium from old products uses 95% less energy than making it from scratch.

Hence, the correct answer is "A)"

8 0
2 years ago
Which sport is required to have both male and female competitors ?
pashok25 [27]

Answer: Equestrian: An Olympic sport in which competitors ride horses, male and female riders compete head top head against each other in eventing, dressage and show jumping disciplines.

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2 years ago
You do things to keep your body in balance every day. What things do you try to keep balanced in your everyday life?
olga nikolaevna [1]

Answer:

Stretches, Exercise, run 30 mins a day, eat healthy food like apples strawberries, drink water ,and sleep at the best time of the day around 9:30 or 10:26 pm

8 0
3 years ago
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