Answer:
Cranial capacity increased the most from 2 million years ago to the present.
Explanation:
The rate of change is greatest between 2 million years ago and the present.
Answer:
The phloem carries important sugars, organic compounds, and minerals around a plant. Sap within the phloem simply travels by diffusion between cells and works its way from leaves down to the roots with help from gravity. The phloem is made from cells called 'sieve-tube members' and 'companion cells'.
Answer:
Most invertebrates (and higher animals) can be placed in one of two groups based on how they develop as embryos. The two groups are called protostomes and deuterostomes. ... It shows that echinoderms are more closely related to chordates than are the other invertebrate phyla. Explanation:
answer: please refer to my word document which i wrote and attached in my answer.i hope it helps you i am so sorry if it wasnt what you wanted. PLEASE DOWNLOAD MY DOCUMENT AND OPEN IT YOU WILL FIND MY WORK .I ALSO ADDED A DIAGRAM OF THE DIGESTIVE SYSTEM TO HELP YOU UNDERSTAND MORE.
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Yes, all polypeptides have tertiary structures. All proteins have primary, secondary and tertiary structures. However, quaternary structures only arise when a protein is made up of two or more polypeptide chains. Hope this answers the question. Have a nice day.
