Select the claims that an ecologist might reasonably make. 1. Small animals like birds and amphibians lay eggs, but larger animals give birth.

2. Animals only take care of their young if they have fewer than 5 babies.

3. Birds decide when to start their courtship rituals and what they will do to attract a mate.

4. All flowers need bees for pollination.

5. None of the above are reasonable claims.

answer; /// i do believe the correct answer is (

21 stacks

step-by-step explanation:

divide 630/30

21 stacks

enjoy!

the level of progesterone is low at the pre-ovulatory phase of the cycle but it gradually increases and the levels are high at the luteal phase. if pregnancy occurs, the level of progesterone will be high throughout the pregnancy.

if egg is fertilized and the mother gets pregnant, progesterone starts preparing the uterus for the implantation. it starts building up the lining of uterus and make it hostile of the period of pregnancy.