1. Чего у рыб больше яиц в яичниках самки или сперматозоидов в семенниках самца? Объясните различие?
  
2. Концентрические круги на спилах деревьев и чешуе рыб – это аналогичные или гомологичные структуры? В чем причины сходства?

Какой частью речиявляется слово как(то)? Запишите его в составе предложения. Напишите ещё 5-6 слов на данное слово.
Пожалуйста помогите. 

Вставьте нужный вариант:

1) He ... satirical pamphlets.

a)started to write; b)has started; c)started write; d) has started to write

2) He paid more attention .... his business.

a)at; b)to; c)of; d)for

3) His pamphlets often .......

a)put him into trouble; b)took him into trouble; c)got him into trouble; d)troubled him

4) He wrote about 200 works, and ..... were very succesful.

a)any of them; b) all them; c) some they; d)some of them

5) A saylor ...... years of solitude on the island of Juan Fernandez.

a)spent; b)has spent; c)is spending; d) some of them

6) He .....  his early training at the famous Charter House School.

a)receives; b)received; c) had received; d) was receiving

7) Then he went to Cambridge, but ........ to take his degree.

a)did not wait to take; b) expected no taking; c) did not wait taking; d) hadn't expected to take

8) He ....... an artist.

a)made up one's mind to become; b)made up his mind to become; c) made up his mind  becoming; d)made up  mind to become