If I am not wrong, I believe the answer is Producers. The reason as to why I say that producers is the answer is because in every food chain, there needs to be a base. That base is what provides the starting energy that will later on move up in the food chain.
Complete question: A phylogenetic tree shows that birds and crocodiles share many features. A hypothesis based on this tree predicts that these features are present in a common ancestor. Which of these predicted traits is supported by fossil evidence?
A) four-chambered heart
B) singing for territory
C) eggs and nests
D) singing to attract mates
Answer: (c) eggs and nests
Explanation:
A hypothesis based on phylogenetic tree shows that birds and crocodiles have ancestral connection. Fossil evidence shows that their common ancestor exhibit oviparity as a means of reproduction (i.e. laying of eggs and embryo develops within the egg), and also housed their eggs in the nest for protection against predators and other important reasons.
<span>The challenge of reproducing is one of important manners which distinguishes migratory birds from another birds. The question is that which examples descrbe such manners, and for that, we can choose A, C and D</span>
Answer:
I'll take a look
Explanation:
A Recessive trait is the situation in which a trait is expressed, this occurs when an organism has two recessive alleles.
The correct answer is option C, that is, both vitamin C and zinc are involved in immune system functions.
Vitamin C is an important vitamin, which does an essential function in wound healing, immunity, and eye health. On the other hand, zinc refers to a dietary mineral, which also helps in immunity, protects the eyes from vision-robbing ailments, and also helps to heal wounds.
